Texas Instruments

SN74S139AN  

Encoders, Decoders, Multiplexers & Demultiplexers

SN74S139AN Description

The SN74S139AN is a high-performance decoder/demultiplexer integrated circuit (IC) from Texas Instruments, designed to provide efficient signal routing and decoding in various electronic systems. This IC features a 1 x 2:4 decoding/demultiplexing function, allowing it to convert a single input signal into one of four output signals based on the input address. The SN74S139AN is housed in a through-hole 16DIP package, making it suitable for applications requiring robust mechanical stability and ease of installation on printed circuit boards.

SN74S139AN Features

• Operating Temperature Range: The SN74S139AN operates reliably within a temperature range of 0°C to 70°C, making it suitable for a wide range of industrial and commercial applications.
• Power Supply: It operates from a single supply voltage ranging from 4.75V to 5.25V, ensuring compatibility with standard 5V power supplies commonly used in digital systems.
• Independent Circuits: The IC contains two independent 1 x 2:4 decoder/demultiplexer circuits, providing flexibility and reducing the need for multiple components.
• Output Current Capability: The SN74S139AN can source up to 400µA and sink up to 8mA, making it capable of driving a variety of loads directly.
• Compliance and Standards: The IC is REACH unaffected and RoHS3 compliant, ensuring it meets the highest environmental and safety standards. It is also classified under ECCN EAR99 and HTSUS 8542.39.0001.
• Moisture Sensitivity Level: The SN74S139AN is not moisture sensitive, eliminating concerns about moisture-related failures in humid environments.

SN74S139AN Applications

The SN74S139AN is ideal for applications requiring efficient signal decoding and demultiplexing. Its robust design and high performance make it suitable for:

• Digital Systems: Used in microprocessor and microcontroller systems for address decoding and signal routing.
• Telecommunications: Employed in signal switching and routing in telecommunication equipment.
• Automotive Electronics: Utilized in automotive control systems for multiplexing sensor signals.
• Industrial Control: Applied in industrial automation for controlling multiple devices from a single input signal.
• Consumer Electronics: Used in consumer devices for managing multiple display or control signals.

Conclusion of SN74S139AN

The SN74S139AN from Texas Instruments is a versatile and reliable decoder/demultiplexer IC that offers significant advantages over similar models. Its wide operating temperature range, single supply operation, and high output current capability make it suitable for a variety of demanding applications. The inclusion of two independent circuits in a single package enhances design flexibility and reduces component count. With its compliance to environmental and safety standards, the SN74S139AN is an excellent choice for modern electronic systems requiring efficient and reliable signal decoding and demultiplexing.

SN74S139AN Documents

Download datasheets and manufacturer documentation for SN74S139AN

Datasheets :

SN54/74(LS,S)139/A      

HTML Datasheet :

SN54/74(LS,S)139/A